821570225

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{313}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 1194244992

約数和(自身を除く): 372674767

約数列:

[1, 5, 7, 25, 35, 53, 175, 265, 283, 313, 371, 1325, 1415, 1565, 1855, 1981, 2191, 7075, 7825, 9275, 9905, 10955, 14999, 16589, 49525, 54775, 74995, 82945, 88579, 104993, 116123, 374975, 414725, 442895, 524965, 580615, 620053, 2214475, 2624825, 2903075, 3100265, 4694687, 15501325, 23473435, 32862809, 117367175, 164314045, 821570225]

約数ペア:

[(1, 821570225), (5, 164314045), (7, 117367175), (25, 32862809), (35, 23473435), (53, 15501325), (175, 4694687), (265, 3100265), (283, 2903075), (313, 2624825), (371, 2214475), (1325, 620053), (1415, 580615), (1565, 524965), (1855, 442895), (1981, 414725), (2191, 374975), (7075, 116123), (7825, 104993), (9275, 88579), (9905, 82945), (10955, 74995), (14999, 54775), (16589, 49525)]